Professor Claire Gwenlan: Publications

Search for gluinos in events with two same-sign leptons, jets, and missing transverse momentum with the ATLAS detector in pp collisions at √s=7TeV

Physical Review Letters 108:24 (2012)

Authors:

G Aad, B Abbott, J Abdallah, S Abdel Khalek, AA Abdelalim, A Abdesselam, O Abdinov, B Abi, M Abolins, OS Abouzeid, H Abramowicz, H Abreu, E Acerbi, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, M Aderholz, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, T Akdogan, TPA Åkesson, G Akimoto, AV Akimov, A Akiyama, MS Alam, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, M Aliyev, BMM Allbrooke, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, B Alvarez Gonzalez, MG Alviggi, K Amako, P Amaral, C Amelung, VV Ammosov, A Amorim, G Amorós, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, ML Andrieux, XS Anduaga, A Angerami, F Anghinolfi, A Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, S Aoun, L Aperio Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce, S Arfaoui, JF Arguin, E Arik, M Arik, AJ Armbruster

Abstract:

A search is presented for gluinos decaying via the supersymmetric partner of the top quark using events with two same-sign leptons, jets, and missing transverse momentum. The analysis is performed with 2.05fb-1 of integrated luminosity from pp collisions at √s=7TeV collected by the ATLAS detector at the LHC. No excess beyond the standard model expectation is observed, and exclusion limits are derived for simplified models where the gluino decays via the supersymmetric partner of the top quark and in the minimal supergravity and constrained minimal supersymmetric standard model framework. In those scenarios, gluino masses below 550 GeV are excluded at 95% C.L. within the parameter space considered, significantly extending the coverage with respect to existing limits. Depending on the model parameters, gluino masses up to 750 GeV can also be excluded at 95% C.L. © 2012 CERN.

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Search for lepton flavour violation in the eμ continuum with the ATLAS detector in √s = 7 TeV pp collisions at the LHC

European Physical Journal C 72:6 (2012)

Authors:

G Aad, B Abbott, J Abdallah, AA Abdelalim, A Abdesselam, O Abdinov, B Abi, M Abolins, H Abramowicz, H Abreu, E Acerbi, BS Acharya, DL Adams, TN Addy, J Adelman, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, T Akdogan, TPA Åkesson, G Akimoto, AV Akimov, A Akiyama, A Aktas, MS Alam, MA Alam, S Albrand, M Aleksa, IN Aleksandrov, M Aleppo, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, M Aliyev, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, MG Alviggi, K Amako, C Amelung, VV Ammosov, A Amorim, G Amorós, N Amram, C Anastopoulos, T Andeen, CF Anders, KJ Anderson, A Andreazza, V Andrei, XS Anduaga, A Angerami, F Anghinolfi, N Anjos, A Annovi, A Antonaki, M Antonelli, S Antonelli, A Antonov, J Antos, F Anulli, S Aoun, LA Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce, JP Archambault, S Arfaoui, JF Arguin, E Arik, M Arik, AJ Armbruster, O Arnaez, C Arnault, A Artamonov, G Artoni, D Arutinov, M Asai, S Asai, R Asfandiyarov, S Ask

Abstract:

This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark (t) in the e±μ∓ continuum using 2.1 fb−1 of data collected by the ATLAS detector in √s = 7 TeV pp collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds. Limits on R-parity-violating couplings at 95 % C.L. are calculated as a function of the scalar top mass (mt). The upper limits on the production cross section for pp→eμX, through the t-channel exchange of a scalar top quark, ranges from 170 fb for mt = 95 GeV to 30 fb for mt = 1000 GeV.

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A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector

(2012)

Authors:

JL Abelleira Fernandez, C Adolphsen, AN Akay, H Aksakal, JL Albacete, S Alekhin, P Allport, V Andreev, RB Appleby, E Arikan, N Armesto, G Azuelos, M Bai, D Barber, J Bartels, O Behnke, J Behr, AS Belyaev, I Ben-Zvi, N Bernard, S Bertolucci, S Bettoni, S Biswal, J Blümlein, H Böttcher, A Bogacz, C Bracco, G Brandt, H Braun, S Brodsky, O Brüning, E Bulyak, A Buniatyan, H Burkhardt, IT Cakir, O Cakir, R Calaga, V Cetinkaya, E Ciapala, R Ciftci, AK Ciftci, BA Cole, JC Collins, O Dadoun, J Dainton, A De Roeck, D d'Enterria, A Dudarev, A Eide, R Enberg, E Eroglu, KJ Eskola, L Favart, M Fitterer, S Forte, A Gaddi, P Gambino, H García Morales, T Gehrmann, P Gladkikh, C Glasman, R Godbole, B Goddard, T Greenshaw, A Guffanti, V Guzey, C Gwenlan, T Han, Y Hao, F Haug, W Herr, A Hervé, BJ Holzer, M Ishitsuka, M Jacquet, B Jeanneret, JM Jimenez, JM Jowett, H Jung, H Karadeniz, D Kayran, A Kilic, K Kimura, M Klein, U Klein, T Kluge, F Kocak, M Korostelev, A Kosmicki, P Kostka, H Kowalski, G Kramer, D Kuchler, M Kuze, T Lappi, P Laycock, E Levichev, S Levonian, VN Litvinenko, A Lombardi, J Maeda, C Marquet, SJ Maxfield, B Mellado, KH Mess, A Milanese, S Moch, II Morozov, Y Muttoni, S Myers, S Nandi, Z Nergiz, PR Newman, T Omori, J Osborne, E Paoloni, Y Papaphilippou, C Pascaud, H Paukkunen, E Perez, T Pieloni, E Pilicer, B Pire, R Placakyte, A Polini, V Ptitsyn, Y Pupkov, V Radescu, S Raychaudhuri, L Rinolfi, R Rohini, J Rojo, S Russenschuck, M Sahin, CA Salgado, K Sampei, R Sassot, E Sauvan, U Schneekloth, T Schörner-Sadenius, D Schulte, A Senol, A Seryi, P Sievers, AN Skrinsky, W Smith, H Spiesberger, AM Stasto, M Strikman, M Sullivan, S Sultansoy, YP Sun, B Surrow, L Szymanowski, P Taels, I Tapan, AT Tasci, E Tassi, H Ten Kate, J Terron, H Thiesen, L Thompson, K Tokushuku, R Tomás García, D Tommasini, D Trbojevic, N Tsoupas, J Tuckmantel, S Turkoz, TN Trinh, K Tywoniuk, G Unel, J Urakawa, P VanMechelen, A Variola, R Veness, A Vivoli, P Vobly, J Wagner, R Wallny, S Wallon, G Watt, C Weiss, UA Wiedemann, U Wienands, F Willeke, B-W Xiao, V Yakimenko, AF Zarnecki, Z Zhang, F Zimmermann, R Zlebcik, F Zomer

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Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-pT leptons

Journal of High Energy Physics 2012:5 (2012)

Authors:

G Aad, B Abbott, J Abdallah, AA Abdelalim, A Abdesselam, O Abdinov, B Abi, M Abolins, OS AbouZeid, H Abramowicz, H Abreu, E Acerbi, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, M Aderholz, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, T Akdogan, TPA Åkesson, G Akimoto, AV Akimov, A Akiyama, MS Alam, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, M Aliyev, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, B Alvarez Gonzalez, MG Alviggi, K Amako, P Amaral, C Amelung, VV Ammosov, A Amorim, G Amorós, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, ML Andrieux, XS Anduaga, A Angerami, F Anghinolfi, A Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, S Aoun, L Aperio Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce, JP Archambault, S Arfaoui, JF Arguin, E Arik, M Arik, AJ Armbruster, O Arnaez

Abstract:

A measurement is reported of the production cross section of top-quark pairs (tt̄) in proton-proton collisions at a center-of-mass energy of 7 TeV recorded with the ATLAS detector at the LHC. Candidate events have a signature consistent with containing two isolated leptons, large missing transverse momentum, and at least two jets. Using a data sample corresponding to an integrated luminosity of 0.70 fb-1, a tt̄ production cross section σtt̄ = 176 ± 5(stat.)-1111+(syst.) ± 8(lum.) pb is measured for an assumed top-quark mass of mt = 172.5 GeV. This measurement is in good agreement with Standard Model predictions. © CERN.

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Measurement of the top quark mass with the template method in the tt̄ → lepton+jets channel using ATLAS data

European Physical Journal C 72:6 (2012) 1-30

Authors:

G Aad, B Abbott, J Abdallah, AA Abdelalim, A Abdesselam, O Abdinov, B Abi, M Abolins, OS AbouZeid, H Abramowicz, H Abreu, E Acerbi, BS Acharya, L Adamczyk, DL Adams, TN Addy, J Adelman, M Aderholz, S Adomeit, P Adragna, T Adye, S Aefsky, JA Aguilar-Saavedra, M Aharrouche, SP Ahlen, F Ahles, A Ahmad, M Ahsan, G Aielli, T Akdogan, TPA Åkesson, G Akimoto, AV Akimov, A Akiyama, MS Alam, MA Alam, J Albert, S Albrand, M Aleksa, IN Aleksandrov, F Alessandria, C Alexa, G Alexander, G Alexandre, T Alexopoulos, M Alhroob, M Aliev, G Alimonti, J Alison, M Aliyev, BMM Allbrooke, PP Allport, SE Allwood-Spiers, J Almond, A Aloisio, R Alon, A Alonso, BA Gonzalez, MG Alviggi, K Amako, P Amaral, C Amelung, VV Ammosov, A Amorim, G Amorós, N Amram, C Anastopoulos, LS Ancu, N Andari, T Andeen, CF Anders, G Anders, KJ Anderson, A Andreazza, V Andrei, M Andrieux, XS Anduaga, A Angerami, F Anghinolfi, A Anisenkov, N Anjos, A Annovi, A Antonaki, M Antonelli, A Antonov, J Antos, F Anulli, S Aoun, LA Bella, R Apolle, G Arabidze, I Aracena, Y Arai, ATH Arce

Abstract:

The top quark mass has been measured using the template method in the tt̄ → lepton+jets channel based on data recorded in 2011 with the ATLAS detector at the LHC. The data were taken at a proton-proton centre-of-mass energy of √s = 7 TeV and correspond to an integrated luminosity of 1. 04 fb-1. The analyses in the e+jets and μ+jets decay channels yield consistent results. The top quark mass is measured to be mtop=174. 5±0. 6stat±2. 3syst GeV. © 2012 CERN for the benefit of the ATLAS collaboration.

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Professor Claire Gwenlan

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Search for gluinos in events with two same-sign leptons, jets, and missing transverse momentum with the ATLAS detector in pp collisions at √s=7TeV

Authors:

Abstract:

Search for lepton flavour violation in the eμ continuum with the ATLAS detector in √s = 7 TeV pp collisions at the LHC

Authors:

Abstract:

A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector

Authors:

Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-pT leptons

Authors:

Abstract:

Measurement of the top quark mass with the template method in the tt̄ → lepton+jets channel using ATLAS data

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Professor Claire Gwenlan

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Search for gluinos in events with two same-sign leptons, jets, and missing transverse momentum with the ATLAS detector in pp collisions at √s=7TeV

Authors:

Abstract:

Search for lepton flavour violation in the eμ continuum with the ATLAS detector in √s = 7 TeV pp collisions at the LHC

Authors:

Abstract:

A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector

Authors:

Measurement of the cross section for top-quark pair production in pp collisions at √s = 7 TeV with the ATLAS detector using final states with two high-pT leptons

Authors:

Abstract:

Measurement of the top quark mass with the template method in the tt̄ → lepton+jets channel using ATLAS data

Authors:

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